Opinions requested as to suitability of this grease for caliper sliders

[Ozymandis 103]

https://www.sarlubricants.co.uk/products/industrial/greases/product/synthetic-high-temp-2/

 

I was using some of this grease and was thinking, "hmm this might be good for caliper sliders!"

 

High temp, PTFE, corrosion resistant, and made  locally. I was using small tubes of specific slide grease from mannol, quite a rip off and I am running out. I have cartridges of this high temp stuff.

Has anyone an opinion please?

 

I have some base model Girling calipers to put new slider kits in and will give it a try, see how the gaiters cope with it and if they rot then I will know I suppose.

[welshpug 1,721]

you shouldn't need much grease on the sliders and it needs to be rubber compatible, so the red rubber grease or the translucent stuff you get with slider pin kits is what you need.

 

that grease sounds ideal for heavy machinery like diggers etc, but not for car brakes.

[pug_ham 245 3 Cars]

Last time I did the sliders on my car I just used a light clear silicone grease.

 

g

[DamirGTI 358]

Id give it a go , it says synthetic and silicone base oil .

 

Silicone and red rubber grease is all i've been using on slider pins .

But new rubber boot kits for the calipers do seem to be vrey poor , had a few which went poop in just a two years time much like driveshaft boots .. just cracked off all over the place i think it was the road salt/chemicals during the winter time which made them rot/disintegrate .

[Ozymandis 103]

Thank You for Your opinions gents.

 

I'm an old man ,the first calipers I ever rebuilt were on the back of an ex police Motorway patrol 3.0 V6 Zephyr FF estate. After 48Yrs at it, My experience on all year round Yorkshire roads, everyday high and low mileage cars and commercials is thus:

 

Red rubber grease is a no no, it has no water resistance whatsoever and minimal lubricity, gaiters stay fine, and the sliders seize quickly. Castrol specifically warned You not to use it in this application

 

Silicon based grease is more durable, but has little lubricity and fretting wear makes the pins start to rattle or clack depending on the design of caliper. Gaiters stay fine.( i have not tried silicon with PTFE which may be better )

 

    Both are for lubricating brake hydraulic parts, such as wheel cylinder piston/boot or caliper piston/boot areas and are poor mechanical lubricants.

 

Lithium soap grease lasts a while longer before seizing and the gaiters are fine.

 

Lithium soap grease with MoS2 seizes the same, but goes through a sticky "lurchy" earlier failure . Gaiters stay fine.

 

Calcium soap greases, specifically the white Castrol stuff that I use for the splines on Rudge type splined wheels and hubs is great, but the gaiters do degrade.

 

Poly-urea grease for turbine bearings and tripod inner cv joints works well, no problems.

 

 

Looking at what Ate use and VW sell as slider grease for certain applications the correct stuff is poly-glycol grease.

 

The grease I was asking about is a poly-glycol grease with excellent lubrication, heat resistance and water resistance, how would this not be a fine lubricant for caliper sliders please Gents?

 

I am always learning and happy to be contradicted with evidence please. Maybe someone has researched it further, its difficult to get definitive answers from manufacturers and data sheets are the only way to find out, that I know of.

 

 

 

[DamirGTI 358]

Blimey , you're not old , you're ancient ! 

 

Far from any expert , i go by , done is always better than perfect .

 

When i was around , grease wise we had only lithium , caclium and graphite and we made it till today !

 

Silicone and red rubber grease is usually supplier with the caliper rebuilding kits , cheap stuff i know but it works .. i do have some "brake grease" too which im using along with those , the ATE one in blue alu. tube and packs of small ones made by TRW . 

 

Guess we all know rubber parts are very different nowadays , quality is simply put crap .. bushes , gaitors , boots all craps out withing few years time while the old stuff lasted for 30 years ..
I've an late 90's car here and 60/70% of OE rubber parts on it are still good , with some dry rot but still holding up .

 

Take say an driveshaft boot of this age to the 30 years in future you'll need archeologist to find it .